Vapor Lock?

mrnickleye · 03-05-2006, 01:01 AM

These cars don't get 'vapor lock'. They do get carbon build up on the back sides of the intake valves. The official fix, back in the day, from Toyota was to remove the head and de-carbonize the valves.

When your head was off, did you have a valve job done ??

Your problem can also be a fuel system that does not hold residual pressure in the lines when the engine is off. In other words, the pressure bleeds down. This can be caused by 1 or more dirty injectors.

The first thing I would do is get 2 bottles of Techron fuel injector cleaner, for the fuel tank. Walmart and all the parts stores carry it. Independent tests have shown it to be the best "YOU" can buy. (I have stuff 10x stronger down at the shop).

I would put a bottle in about 1/2 a tank and go for a long "Sunday" drive. Then add another bottle and fill the tank up, and drive normally.

03-05-2006, 01:01 AM	#2
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	These cars don't get 'vapor lock'. They do get carbon build up on the back sides of the intake valves. The official fix, back in the day, from Toyota was to remove the head and de-carbonize the valves. When your head was off, did you have a valve job done ?? Your problem can also be a fuel system that does not hold residual pressure in the lines when the engine is off. In other words, the pressure bleeds down. This can be caused by 1 or more dirty injectors. The first thing I would do is get 2 bottles of Techron fuel injector cleaner, for the fuel tank. Walmart and all the parts stores carry it. Independent tests have shown it to be the best "YOU" can buy. (I have stuff 10x stronger down at the shop). I would put a bottle in about 1/2 a tank and go for a long "Sunday" drive. Then add another bottle and fill the tank up, and drive normally. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.